I'm having a problem with UBCD running off an USB stick. It works fine on all the Desktops around, but on both the IBM/Lenovo T61 and X61 series the freedos disk fails in an interesting way. It displays funny messages like"LBACACHE: in. STAK nest!? otherss=00d3"whenever it tries to access C: (i.e. the USB drive).

As far as I can tell, this is a problem with LBACACHE, because if I use the "Clean Boot" entry I can access the USB stick (as C:) just fine.

Unfortunately even the "Ultra-Defensive" boot option doesn't have an option to skip LBACACHE, so I'm a bit lost on how to fix/workaround this problem.

Conceivably, since menu interaction is not involved, and mdiskchk.com is already available at that stage.

So what do you have in mind? For users to update the menus and add "nolbacache" to every "memdisk fdubcd" line? Might be more convenient to introduce a single flag in "/etc/global.set" on fdubcd.img instead.

@Icecube: The proper place to add the default "0" value for "nolbacache" is config.sys (global.set is more for default menu settings), which I have done. Specifying "nolbacache" in memdisk sets it to 1, which disables loading of LBACACHE.

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